Phase 9: scaffold remote server (Flask + Postgres, docker-compose for unraid)

- server/sql/init.sql: devices/tracking_points/dashcam_files schema
- server/modules/db.py: psycopg3 pool + query helpers
- server/modules/auth.py: X-Device-Name/X-Api-Key header auth
- server/app.py: /health, /api/v1/tracking/batch, /api/v1/dashcam/upload
- server/Dockerfile + docker-compose.yml: api (gunicorn) + postgres services
- server/scripts/create_device.py: one-time device/API-key registration
- server/README.md: unraid deployment + Cloudflare Tunnel exposure docs
- PLAN.md: Phase 9 marked in progress with full build notes

Co-authored-by: Copilot <[email protected]>

server/docker-compose.yml

@@ -0,0 +1,44 @@
+services:
+  db:
+    image: postgres:17
+    container_name: yaris-obd-db
+    restart: unless-stopped
+    environment:
+      POSTGRES_DB: ${POSTGRES_DB:-yarisobd}
+      POSTGRES_USER: ${POSTGRES_USER:-yarisobd}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:?set a POSTGRES_PASSWORD in .env}
+    volumes:
+      - ${DATA_DIR:-./data}/postgres:/var/lib/postgresql/data
+      - ./sql/init.sql:/docker-entrypoint-initdb.d/init.sql:ro
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-yarisobd}"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+    # Not published to the host/LAN on purpose - only reachable from the
+    # `api` container over the internal compose network.
+
+  api:
+    build: .
+    container_name: yaris-obd-api
+    restart: unless-stopped
+    depends_on:
+      db:
+        condition: service_healthy
+    environment:
+      POSTGRES_HOST: db
+      POSTGRES_PORT: 5432
+      POSTGRES_DB: ${POSTGRES_DB:-yarisobd}
+      POSTGRES_USER: ${POSTGRES_USER:-yarisobd}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:?set a POSTGRES_PASSWORD in .env}
+      DASHCAM_STORAGE_DIR: /data/dashcam
+      MAX_DASHCAM_UPLOAD_MB: ${MAX_DASHCAM_UPLOAD_MB:-2048}
+    volumes:
+      - ${DATA_DIR:-./data}/dashcam:/data/dashcam
+    ports:
+      - "${API_PORT:-8098}:8098"
+    healthcheck:
+      test: ["CMD", "python3", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:8098/health', timeout=3)"]
+      interval: 30s
+      timeout: 5s
+      retries: 3